Refuse vehicle



April 29, 1958 E F. KAMIN REFUSE VEHICLE 3 Sheets-Sheet 1 Filed July 5,1955 y INVENTOR. Ernesf EKamin hw/U/k April 29, 1958 E. F. KAMlN REFUSEVEHICLE 3 Sheets-Sheet 2 Filed July 5, 1955 b\ 3 Q H F a Q a E; 3 WV .MQ s M 1 1 WW X JNVENTOR. 51 11 as? EKamin BY April 29, 1958 E. F. KAMINREFUSE VEHICLE 3 Sheets-Sheet 3 Filed July 5, 1955 INVENTOR. ErnesPFKamin BY mohuuqun PNVAUD United States Patent REFUSE VEHICLE Ernest F.Kamin, Portland, Oreg.

Application July 5, 1955, Serial No. 519,751 14 Claims. (01. 214-518)This invention relates to a refuse collection vehicle having a buckettype loader mechanism and a load packing and expelling mechanism.

One object of my invention is to provide the nondump body of a refusevehicle with a hydraulic ram mechanism for packing material carriedwithin the body and, selec- 'tively, for expelling the material throughthe rear of the body.

Another object of my invention is to provide such a packer or expellertogether with a bucket loader, both the packer and loader beinghydraulically actuated from a common control system allowing one or theother to function in sequence but not simultaneously.

In the art to which this invention pertains, refuse packers and bucketloaders of various configurations are well known. In conjunction with aclosed refuse containing body, it is a function of the conventionalpacker to compress the material carried within the body therebyincreasing materially the carrying capacity and decreasing the number oftrips which must be made to a dump area or incinerator. At the sametime, it is a function of the conventional bucket loader to receivecharges of material adjacent the rear of the truck, lift the charge intothe air, and dump it into the body. At this point, an inspection ofthese conventional mechanisms brings home an interesting point. In termsof body shape or design, the effect of providing a bucket loader and/ ora packer having sufficient movement also to expel the refuse materialare cumulative. That is to say, the conventional pivotal bucket loaderswings on long arms through an are up and over the body. It thus is bestsuited to a high, short truck body constructed with a rounded outlineconforming to the arc of the pivotal movement. At the same time, packersheretofore utilized to eject the refuse material through the rear of thetruck also have performed more efliciently with a short, high truckbody. This is for the apparent reason that most packers arehydraulically actuated and the factor limiting the design is the limitof the stroke of the ram. The movement of the packer thus must be inaccord with the limit of the stroke of the hydraulic ram. With a limitedamount of space available for the mounting of the hydraulic ram behindthe packer (in the retracted position), the overall stroke quiteapparently must be short. Accordingly, to effect a full ejection andthus dispose of the entire load of refuse material, the body itself mustbe short. In summary, these factors have required that the conventionalrefuse body employing these devices be short and, to increase the load,be

high.

the vertical clearance available in underpasses and the like. Thislimitation on vertical height further limits the longitudinal length ofa body employing a packer and/ or bucket loader as above described.Secondly, a majority .of those refuse vehicles which are now in use andwhich 2,832,488 Patented Apr. 29, 1958 do not employ packers and loadersare equipped with boxlike dump bodies which are long and low insilhouette. Accordingly, to equip these conventional refuse collectingbodies with a packer and/ or a bucket loader is impractical with thedevices heretofore known. To obtain the benefits of a packer and/ or aloader, the owner must either install a completely different body orpurchase a new vehicle with a short, high body.

In view of the above factors, it is one object of the instant inventionto provide a packer and/ or bucket loader for use with a body which islong and low (more or less rectangular in cross section) and which thusis of conventional design in the refuse collection art. A correlatedobjective,- of course, is to provide a bucket loader and/or packer whichcan be fitted to existing conventional truck bodies with a resultantsaving to the operators.

Another object of my invention is to provide the nondump type of body ofa refuse vehicle with a rear opening to which an improved novel reartailgate is fitted, the tailgate being retained in place by means of alip and dog structure which effectively will resist displacement inspite of the large forces imposed thereon by a packer.

A related objective is to provide a rear tailgate as above describedwith a hinge allowing, in sequence, limited vertical movement and a fullpivotal movement with respect to the rear opening in either a dump or anondump body.

Yet another related objective is to provide a nondump body having both apacker and a loader with detachable means for interconnecting the bucketloader and the tailgate so that as the bucket moves from a load toward adischarge position, the tailgate is lifted vertically clear of aretention mechanism and then is pivoted to an open position.

Yet another object of my invention is to provide a pivoted bucket loaderwith releasable latch means which fixes the bucket against pivotalmovement with respect to the lifting arms until a snubber line ofpreselected length releases the latch allowing the bucket to pivot anddump into the body when the bucket overlies a top opening.

In a nondump body for a refuse vehicle having both a movable packer andbucket loader, it is a further object of my invention to provide controlmeans for actuating the two movable elements, which control meanscooperates With a mechanical mechanism carried by the packer itself inorder to disengage or to stop the actuating mechanism for the packereach time the packer is fully retracted. This latter mechanism therebyalso defines a visual indiciurn of the position of the packer allowingthe operator to be informed when the packer is fully retracted and, as aconsequence, an additional charge of material can be fed to the body.

Yet another object of my invention is to provide a packer for a refusevehicle, said packer being actuated by two expansible hydraulic motorswhich are joined together with an elongated lever. With the length ofthis lever and the maximum stroke of the hydraulic motors correlated,the packer then is allowed to move the full length of the nondump bodyto expel material even though the length of that body may begreater thanin previous refuse vehicles.

These and other objects and advantages of my invention will becomeapparent during consideration of .the following detailed description,taken in conjunction with the accompanying drawings, wherein:

Fig. 1 is a side view of the vehicle showing, by dashed outline, themovement of the bucket loader and packer;

Fig. 2 is a detail view of the rear portion of the body only, showingthe manner in which the bucket and tailvertical and pivotal movement forthe rear tailgate;

Fig. 3' is a rear view of thetruck showing the bucket loader in a loweror load position;

Fig. 4 is a cross section detail, taken substantially on the line 4-4 ofFig. 1, showing the packer in place within the'hollow body;

Fig. "5 is a cross section detail, taken substantially on the line 5-5of Fig. 4, showing the packer per se;

' Fig. 6 is a cross section view of the entire body, taken substantiallyon the line 6-6 of Fig. 1, showing the relationship of the two hydraulicmotors to the elongated lever for actuating the packer and furtherindicating by direction arrows in dashed outline, the movements of thepacker within the body;

Fig. 7 is a schematic or diagrammatic representation of the hydrauliccontrol system which is common to the by draulic mechanism actuatingboth the packer and the bucket loader; and

Fig. 8 is a detail view, taken substantially on the line 8- 8 of Fig. 6,showing the three control valves and their relationship to themechanical projection carried by the packer in order to move the packercontrol valve to a neutral position each time the packer is fullyretracted.

As best revealed in Figs. 1, 3, and 4, the body 9 is of a long lowsilhouette and is provided with a hollow interior. Because rathersubstantial forces are generated when a packer is used in conjunctionwith this body, the sides are reinforced with multiple structuralmembers 10 which may be pipes or angles as shown in Fig. 1. Inconventional manner, the body itself is provided with rear and topopenings, the former having a rear tailgate 11 arranged in positionthereover and the latter having a pivotal shieldlike covering 12 withside flanges arranged with respect thereto. In cross section, the topclosure 12 is U-shaped and a pivotal mounting is provided at 13 upon thefront wall of the body. The rear tailgate 11, on the other hand, is onlyslightly curved from a plane and is mounted upon the body by means of anovel hinge element 14. It is the function of this hinge element .14 toallow both a vertical and a pivotal movement of the tailgate 11 ashereinafter will be described.

Referring first to the bucket loader mechanism, this includes a pair ofelongated arms 15 pivotally mounted, at 16, and mutually carrying alarge bucket 17. As best seen in Fig. 3, the bucket itself is ofsubstantial capacity so as to allow several loads from a carrying can orthe like to be dumped before the capacity of the bucket is reached.Terminally, the arms 15 carry square plates 18 and the bucket carriesprotruding knobs 19 which coact with the plates to prevent acounterclockwise movement of the bucket with respect to the arms as seenin Fig. l. A spring 20 on each side of the body interconnects anappropriate one of the arms 15 with the side of thebucket 17 and tendsto hold the opposite square plate 18 against a pin 19.

In cooperation with the above structure, each of the plates 18 carries aprotruding pin 21 as part of a mechanism for preventing inadvertentrotation of the bucket in a clockwise direction as viewed in Fig. i. Incooperationwith the pin 21, a releasable latch 22 is pivoted upon thebucket and is provided with a hooked end which engages the pin. Thislatch is joined'to an elongated snubber line 23 at the opposite end, thesnubber line in turn being joined to an eye 24 on the upper portion ofthe body. As shown by the correlated full line and dashed line positionsin Fig. l, the length of the snubber line 23 is calculated so as torelease the latch 22 when the bucket overlies the top opening in thebody. Until the moment that the bucket reaches this precise position,the latch continues to hold the same against inadvertent rotation orspillage of the refuse material. Further, by correlating the length ofthe top opening with the length of the snubber line, the position ofdumping can be precalculated for the particular truck body underconsideration.

To move the arms and bucket loader pivotally from other.

the full line load position to the dashed line discharge position ofFig. 1, I provide a hydraulic mechanism. This includes a pair ofextensible hydraulic motors 25 which pivotally are joined at one end, asat 26, to the truck body. The end of the piston rod of each motor 25, inturn, pivotally is joined to a triangular framework 27 to support thearms 15 as by a pin 23. In this manner, as pressure fluid is fed to thehydraulic motors 25, the piston rods cause the entire arms 15 andtriangular framework 27 to pivot about the point 16 thereby lifting thebucket from the load to the discharge position.

As the bucket reaches the discharge position, it is necessary that thetop closure element 12 be swung to an open position. I efifcct thisopening movement by joining one corner to the top closure element to arod 29 on each side of the body. The opposite end of each of these rodsis joined to an appropriate point on the arms 15 thus allowing thepivotal opening movement of the top closure illustrated by the full anddashed lines in Fig. l.

Turning now to Figs. 1, 5, and 6, the details of the packer will bedescribed. To this end, the packer 30 is a cart-like structure havingtwo wheels 31 at each side thereof. These wheels ride on the floor ofthe body so as to support the weight of the packer and material carriedthereby. In adition, the structural framework of the packer itself isreinforced with appropriate brace members, angle irons, and the like soas to lend the required strength thereto. The working surface of thepacker consists of a smooth sheet metal skin having a vertical portionand an inclined portion as shown in Fig. 5. In cooperation withthestructural framework, the packer cart thus overlies a substantialopen area in which the lever and hydraulic motor mechanism of Fig. 6 isarranged.

To guide the packer cart and to restrict the movement thereof to astraight line movement, channel guides 32 aremounted adjacent the flooron each side wall of the body 9. In cooperation therewith, the packercarries projecting friction slides 33 which are mated to and ride withinthe open webs of the channels 32. These friction slides run the entirelength of the packer cart and thus serve an additional function bypreventing tipping or lifting of one portion of the cart with respect tothe In addition, the lower sides of the packer cart carry'twojournaledwheels 34 which ride the side walls of the truck body 9 above thechannels 32. These particular wheels are journaled about a vertical axisand thus resist uneven side forces or loads imposed as the packer ismoved longitudinally'the length of the hollow body member.

-As best shown in Fig. 6, it is the dual function of the packer 30 tomove longitudinally within the hollow body between a retracted positionadjacent the front of the body and a discharge position adjacent theback of the body selectively to pack material carried within the bodyand to expel material through the aforementioned rear opening. Infurtherance of this function, a first expansiblc hydraulic motor 35 ispivotally mounted upon the rear of the body and a longer strokehydraulic motor 36 is pivotally joined to the center point of the packeritself. An elongated lever means 37 is pivotally mounted, as at 38, uponthe floor of the body and is joined at opposite ends to the piston rodof the motor 35 and the casing of the motor 36. The two hydraulic motors35 and '36 are arranged so as to act oppositely as hereinafter will bedescribed. Accordingly, as the piston within the motor 35 is retracted,that within the motor 36 is extended cooperatively to pivot the lever 37and move the packer 30 from adjacent the front of the truck body towardthe rear thereof.

The function of the several expansible hydraulic motors controlling boththe bucket loader and the packer are best described with reference tothe schematic diagram of Fig. v7. In this figure, the reference numeral39 designates a pump, 40 a fluid reservoir, and 41 a pressure reliefvalve.

The pump 39 is driven from a power takeoff shaft on the vehicle itselfor by other appropriate means and the various conduits illustratedintermediate the pump and the various motors may take the form either ofhydraulic hoses or pipes where appropriate. In any event, a firsttwoposition control valve 42 selects the direction of flow of thepressure fluid. This valve is a two-position valve which feeds thepressure fluid either to the two motors 25 for the bucket or to the twomotors 35 and 36 for the packer. It here will be noted that I purposelyhave selected a valve which cannot feed pressure fluid simultaneously toboth of these elements since a simultaneous actuation is unnecessary andmay lead to confusion in certain instances. For example, were the packermoved forward slightly at the time that a load of refuse was dumpedthrough the top opening into the body, some of the refuse would fallbehind the packer thereby physically blocking a full retraction of thepacker and requiring a cleaning of the truck body before operationscould continue.

Continuing with the hydraulic control and actuation circuit illustratedin Fig. 7, a conventional three-position valve 43 controls the supplyand exhaust of pressure fluid to and from the twin bucket loader motors25. In one position, pressure fluid is fed to one side of each pistonwhile it simultaneously is exhausted from the opposite side thereof. Ina second position of the valve 43, the flows are reversed therebyretracting'the pistons. The third position is a conventional holdposition with the handle in an intermediate position whereby all flow ofpressure fluid to and from the motors is blocked or stopped.

The packer control valve 44 is similar to the bucket control valve inthat it also is movable to three control positions. The first of thesepositions extends the packer, the second retracts the packer, and thethird (intermediate position of the handle) is a hold or no-flowposition intermediate the other two positions. As one feature of myinvention, however, the packer itself carries a projecting rod 45 (seeFigs. 6 and 8). This rod projects through an aperture in the front wallof the truck body 9 adjacent a control board 46 upon which the valves42, 43, and 44 are mounted. This point of projection is correlated so asto be. effective adjacent the protruding lower portion of the controlhandle 44 for the valve controlling the packer motors as shown in Figs.7 and 8. A tension spring 47 is joined to the valve control handle 44 soas to bias the same toward a position which causes the motors 35 and 36to retract the packer. In a typical operational sequence, the truckdriver moves the handle 44 against the force of this spring to cause thepacker to move toward the rear of the body either to compact thematerial within the body or to expel the entire load through the rearopening. Upon completion of this operation, the truck driver merelyreleases the control handle 44 whereupon the spring 47 returns it to thefull line position shown in Fig. 7. This full line position causes themotors 35 and 36 to retract the packer. As the packer arrives in thefully retracted position, the projecting rod 45 physically contacts thehandle 44 moving the same to a neutral or no-flow position shown in Fig.8. It thus cuts off flow to the packer and precisely positions the partsadjacent the front wall of the truck body as desired for further loadingoperations.

In Fig. 2, I have shown a detachable means for interconnecting thebucket loader and the tailgate in order, sequentially, to lift thetailgate 11 vertically and pivotally. As will be evident, the packer 30imposes substantial forces upon the tailgate 11 when material iscompressed within the body. For this reason, I construct two separateretention mechanisms for the rear tailgate 11. The first of theseconsists of a series of releasable dogs 48 which interconnect the sidesof the body and the tailgate to help retain the latter in a coveringposi tion with respect to the rear opening. When the tailgate is to bereleased, these dogs are snapped open, their func- 6 tion being similarto the latches or dogs on a piece of luggage.

As a further retention structure, I provide a vertical lip 49 across thelower back portion of the body. This lip may take the form of anexemplary angle iron or the like and it is proportioned such that thelower margin of the tailgate 11 fits therein. With the dogs 48 closedand the tailgate positioned within the lip 49, the forces generated bythe packer 30 successfully and safely are re sisted. On the other hand,when the tailgate must be opened so as to expel the entire load, thedogs 48 are released and a detachable chain 50 is secured intermediatethe bucket 17 and the tailgate. This chain fits over an eye in thetailgate and a hook on the bucket. It is'of preselected length such thata movement of the bucket from the load position toward the dischargeposition will first lift and will then pivot the tailgate to an outposition. This sequential vertical and pivotal movement of the tailgateis accommodated by the aforementioned hinge element 14 and is bestillustrated in Fig. 2. Here again, the direction or selection valve 42cooperates in that the operator visually can observe if the tailgate isentirely open as he manipulates the valve 42 to allow the packer 30 toexpel the load through the rear opening.

In use, it will be noted that I have provided a nondump body from whichthe refuse material is ejected upon appropriate manipulation of thepacker 30. This provides a more simple assembly and one which is morecompact and durable in construction. Furthermore, by eliminating therequired tilt motors which conventionally tilt a dump body, I haveeliminated an item of substantial expense and have made the operationmore flexible, safe, and eflicient. At the same time, of course, myinvention can be used as an attachment for either dump or nondumpexisting bodies.

When an operator begins his rounds, the truck body 9 is empty and thebucket 17 is carried in full line position shown in Fig. 1. The carryingcans, if such are used, fit within the bucket itself and thus arereadily available for use when the first stop is made. Further, becauseof the substantial capacity of the bucket 17, several stops can be madebefore the capacity of the bucket itself is reached. Once this capacityhas been reached, the valves 42 and 43 are manipulated so as to pivotthe arms 15 and the bucket 17 from the whole line to the dashed lineposition of Fig. 1. During this movement, the latch 22 prevents pivotalmovement of the bucket until the bucket overlies the top opening of thebody. At that point, the snubber line 23 tips the latch and allows theweight of the contents to pivot the bucket to the position shown bydashed lines in Fig. l. Concurrently, of course, the rod 29 has swungthe top closure element 12 from a closed to an open position so as toallow the refuse to fall into the body and against the.

retracted packer 30. v

. After several bucketloads of refuse have been dumped into the body,the valves 42 and 44 are manipulated so as to move the refuse materialrearwardly in the body and compress the same. A typical operation of thepacker is effected by manipulating the valve 44 simultaneously toretract the piston of the motor 35 and extend the piston of the motor36. This pivots the lever 37 and moves the packer the desired distance.After an appropriate movement, the conrol handle of the: valve 44 isreleased whereupon the spring 47 returns it to the full line positionshown in Fig. 7. The packer then is retracted and, as it is fullyretracted, the projecting rod 45 contacts the control h andle' 44 movingthe valve to the neutral position. During the course of the day, theload within" the body may be compacted several times therebymateriallyincreasing the carrying capacity. Toward the, end of the day, the truckbody will be substantially full and compacted so asfto make necessary anejection of the refuse at a dump of the like. Toejec't material, chain50 first is connected intermediate the bucket 17 and the tailgate 11.Thevalves 42 and 43 then are manipulated so as to raise the bucket to apoint about half way between the loaddischarge positions. This movementcauses the chain 50 first to lift the tailgate clear of the lip 49 and,thereafter, to pivot the tailgate to an open position. -By amanipulation of the valves 42 and 44, the packer then can-be extendedcompletely so as to eject the load through the rear opening. A returnmovement of the packer then is effected, the bucket is loaded, and thechain 50 disconnected whereupon the dogs 43 can be closed and the truckis again ready for use.

'It now will be appreciated that the combination packer and bucketloader mechanism is of particular utility with respect to a truck bodyhaving a long low or boxlike silhouette. This type of body is more orless conventional in the industry and contrasts with the high shortbodies required with many prior packers and bucket loaders. Further, byproviding the dwcribed valve and hydraulic actuation mechanism, I havecaused the retraction of the packer itself to effect an automaticshutoff of the packer hydraulic mechanism. This particular structurealso defines a visual indicium means by which the operator can beassured that the packer is properly positioned in the fully retractedposition before he begins the manipulation of the bucket loader. Werethis not true, it is possible that a load of refuse might be dumpedthrough the top opening if the packer were not fully retracted, thusallowing some of the refuse physically to block the retraction of thepacker. In actual commercial use, I have found that my improved refusevehicle ispractical, efiicient, and less costly to construct than thoserefuse vehicles heretofore available.

I claim:

1. In combination with a vehicle to which is fixed an elongated hollowbody having rear and top openings, packer means movable longitudinallywithin said hollow body between a retracted position adjacent the frontof the body and a discharge position adjacent the back of the bodyselectively to pack material carried within the body and to expelmaterial through said rear opening, bucket loader means pivotallymounted upon said body for movement between a load position adjacent therear of the body and a discharge position overlying said top opening,and control means interconnecting said previously mentioned meansselectively to actuate either separately but not both simultaneously.

2. An attachment for a refuse collection vehicle to which is fixed anelongated hollow nondump body of low silhouette having rear and topopenings, said attachmerit including hydraulically actuated packer meansmovable longitudinally within said hollow body between a retractedposition adjacent the front of the body and a discharge positionadjacent the back of the body selectively to pack material carriedwithin the body and to expel material through said rear opening, saidattachment also including hydraulically actuated bucket loader meanspivotally mounted upon said body for movement between a load positionadjacent the rear of the body and a discharge position overlying saidtop opening, and hydraulic control means interconnecting said previouslymentioned means selectively to actuate either separately but not bothsimultaneously, said control means including a movable valve locatedwithout said body and controlling the flow of hydraulic fluid to saidhydraulically actuated packer, said movable valve cooperating withmechanical means carried by the packer for moving the valve to a neutralposition when the packer is fully retracted thereby also defining anindicium of the position of the packer.

3. In combination with a vehicle to which is fixed an elongated hollowbody having rear and top openings, vertical lip means defining the lowermargin of said rear opening and retaining a rear tailgate in coveringpsition with respect to the rear opening, a bucket loader including armmeans pivotally mounted upon the. sides of said body for movement of thebucket between a load position adjacent the rear of the body and adischarge position overlying said top opening, and detachable means f rinterconnecting said bucket loader and tailgate selectively as thebucket moves from the load toward the discharge position to lift thetailgate vertically clear of said lip and to pivot the tailgate to anopen position in sequence.

t. in combination with a refuse collection vehicle to which is fixed anelongated hollow body of low silhouette having rear and top openings,vertical lip means defining the lower margin of said rear opening andretaining a rear tailgate in covering position with respect to the rearopening, plural releasable dogs interconnecting the sides of said bodyand tailgate to help retain the same in said covering position, hingemeans mounting said tailgate upon said body for pivotal and for limitedvertical movement with respect to said rear opening, a bucket loaderincluding arm means pivotally mounted upon the sides of said body formovement of the bucket been a load position adjacent the rear of thebody and a discharge position overlying said top opening, detachablemeans for interconnecting said bucket loader and tailgate selectively asthe bucket moves from the load toward the discharge position to lift thetailgate vertically clear of said lip and to pivot the tailgate to anopen position in sequence, said bucket being pivotally mounted upon saidarm means and carrying releasable latch means 'for fixing the bucketagainst pivotal movement with respect to the arm means, and snubber linemeans of preselected length interconnecting said latch and body torelease the latch allowing the bucket to pivot and dump when the bucketoverlies said top opening.

5. In combination with a vehicle to which is fixed an elongated hollownondump body having rear and top openings, packer means movablelongitudinally within said hollow body between a retracted positionadjacent the front of the body and a discharge position adjacent theback of the body selectively to pack material carried within the bodyand to expel material through said rear opening, vertical lip meansdefining the lower margin of said rear opening and retaining a reartailgate in covering position with respect to the rear opening, a bucketloader including arm.means pivotally mounted upon the sides of said bodyfor movement of the bucket between a load position adjacent the rear ofthe body and a discharge position overlying said top opening, detachablemeans for interconnecting said bucket loader and tailgate selectively asthe bucket moves from the load toward the discharge position to lift thetailgate vertically clear of said lip and to pivot the tailgate to anopen position in sequence, and hydraulic control means selectively butnot simultaneously for actuating said bucket loader and said packer.

6. In combination with a vehicle to which is fixed an elongated hollowbody having rear and top openings, hydraulically actuated packer meansmovable longitudinally within said hollow body between a retractedposition adjacent the front of the body and a discharge positionadjacent the back of the body selectively to pack material carriedwithin the body and to expel material through said rear opening,vertical lip means defining the lower margin of said rear opening andretaining a rear tailgate in covering position with respect to the rearopening, hinge means mounting said tailgate upon said body for pivotaland for limited verticalmovement with respect to said rear opening, ahydraulically actuated bucket loader including arm means pivotallymounted upon the sides of said body for movement of the bucket between aload position adjacent the rear of the body and a dischargepositionoverlying said top opening, detachable means forinterconnectingsaid bucket loader and tailgate selectively as the bucketmoves from the load toward the discharge position to lift the tailgatevertically clear of said lip and to pivot the tailgate to an openposition in sequence, and hydraulic control means selectively but notsimultaneously for actuating said bucket loader and said packer, saidcontrol means including a movable valve located without said body andcontrolling the flow of hydraulic fluid to said hydraulically actuatedpacker, said movable valve cooperating with mechanical means carried bythe packer for moving the valve to a neutral position when the packer isfully retracted thereby also defining an indicium of the position of thepacker.

7. In combination with a vehicle to which is fixed an elongated hollownondump body having rear and top openings, packer means movablelongitudinally within said hollow body between a retracted positionadjacent the front of the body and a discharge position adjacent theback of the body selectively to packmaterial carried within the body andto expel material through said rear opening, vertical lip means definingthe lower margin of said rear opening and retaining a rear tailgate incovering position with, respect to the rear opening, hinge meansmounting said tailgate upon said body for pivotal and for limitedvertical movement with respect to said rear opening, a bucket loaderincluding arm means pivotally mounted upon the sides of said body formovement of the bucket between a load position adjacent the rear of thebody and a discharge position overlying said top opening, detachablemeans for interconnecting said bucket loader and tailgate selectively asthe bucket moves from the load toward the discharge position to lift thetailgate vertically clear of said lip and to pivot the tailgate to anopen position in sequence, said bucket being pivotally mounted upon saidarm means and carrying releasable latch means for fixing the bucketagainst pivotal movement with respect to the arm means, and snubber linemeans of preselected length interconnecting said latch and body torelease the latch allowing the bucket to pivot and dump when the bucketoverlies said top opening, and hydraulic control means selectively butnot simultaneously for actuating said bucket loader and said packer.

8. As an article of manufacture, an attachment for a refuse vehicle,said vehicle having an elongated hollow body of low silhouette withparallel side walls and a flat floor, said attachment including a packercart with an upstanding vertical framework mounted upon wheels formovement longitudinally over said flat floor, said attachment alsoincluding a first longitudinally movable motor means pivotally mountedupon the rear of said body, a second longitudinally movable motor meanspivotally joined to said packer cart, and an elongated lever meanspivotally mounted upon the floor of said body and inter connecting saidfirst and second motors for movement of said packer cart uponsimultaneous actuation of the motors, the length of said lever and themaximum longitudinal movement of said motors being correlated to movesaid packer cart the full length of said body when effecting aninjection of material from the body.

9. A packer for a refuse vehicle, comprising an elongated nondump bodyhaving side walls and a fiat floor, a packer cart with an upstandingvertical framework mounted upon wheels for movement longitudinally ofsaid body over said flat floor, a first expansible hydraulic motorpivotally mounted upon the rear of said body, a second expansiblehydraulic motor pivotally joined to said packer cart, an elongated levermeans pivotally mounted upon the floor of said body and joined atopposite ends to said first and second motors, and hydraulic actuationmeans for simultaneously extending or retracting said hydraulic motorsthereby pivoting said lever and extending or retracting said packercart.

10. A packer for a refuse vehicle, comprising an elongated body havingside walls and a fiat floor, a packer cart with an upstanding verticalframework mounted upon wheels for movement longitudinally of said bodyover said fiat floor, said cart and side walls carrying cooperatingguide means for restricting ment, a first expansible hydraulic motorpivotally mounted upon the rear of said body, a second expansiblehydraulic motor pivotally joined to said packer cart, and an elongatedlever means pivotally mounted upon the floor of said body and joined atopposite ends to said first and second motors for movementof said packercart, the length of said lever and the maximum stroke of said motorsbeing correlated tomove said packer cart the full length of said body.

ll. A packer for a refuse vehicle, comprisingv an elongated nondump bodyhaving side walls and a fiat floor, a packer cart with an upstandingvertical framework mounted upon wheels for movement longitudinally ofsaid body over said flat floor, said cartand side walls carryingcooperating wheels which ride upon the side walls of said body and guidemeans for restricting the cart to straight line movement, said guidemeans including channel guides mounted adjacent the floor on each sidewall and mated friction slides projecting with the guides from adjacentthe lower side portions of the cart, a first expansible hydraulic motorpivotally mounted upon the rear of said body, a second expansiblehydraulicmotor pivotally joined to said packer cart, an elongated levermeans pivotally mounted upon the floor of said body and joined atopposite ends to said first and second motors, and hydraulic actuationmeans for simultaneously extending or retracting said hydraulic motorsthereby pivoting said lever and extending or retracting said packercart, said hydraulic actuation means including a three-position valvelocated Without said body, said valve cooperating with means projectingfrom said packer cart to move the valve to a neutral position when thepacker cart is fully retracted thereby also defining an indicium of theposition of the packer.

12. A refuse vehicle, comprising an elongated body having side walls anda flat floor, a packer cart with an upstanding vertical frameworkmounted upon wheels for movement longitudinally of said body over saidflat floor, a first expansible hydraulic motor pivotally mounted uponthe rear of said body, a second expansible hydraulic motor pivotallyjoined to said packer cart, an elongated lever means pivotally mountedupon the floor of said body and joined at opposite ends to said firstand second motors for movement of said packer cart, a hydraulicallyactuated bucket loader including arm means pivotally mounted upon thesides of said body for movement of the bucket between a load positionadjacent the rear of the body and a discharge position, and hydrauliccontrol means selectively but not simultaneously for actuating saidbucket v loader and said packer.

13. A refuse vehicle, comprising an elongated nondump body having sidewalls and a fiat floor, a packer cart with an upstanding verticalframework mounted upon wheels for movement longitudinally of said bodyover said fiat floor, said cart and side walls carrying cooperatingguide means for restricting the cart to straight line movement, saidguide means including channel guides mounted adjacent the floor on eachside wall and mated friction slides projecting with the guides fromadjacent the lower side portions of the cart, a first expansiblehydraulic motor pivotally mounted upon the rear of said body, a secondexp ansible hydraulic motor pivot-ally joined to said packer cart, anelongated lever means pivotally mounted upon the floor of said body andjoined at opposite ends to said first and second motors, hydraulicactuation means for simultaneously extending or retracting saidhydraulic motors thereby pivoting said lever and extending or retractingsaid packer cart, the length of said lever and the maximum stroke ofsaid motors being correlated to move said packer cart the full length ofsaid body, a hydraulically actuated bucket loader including arm meanspivotally mounted upon the sides of said body for movement of the bucketbetween a load position adjacent the rear of the body and a dischargeposition, and hydraulic control the cartto straight line move meansselectively but not simultaneously for actuating said bucket loader andsaid packer.

14. A refuse vehicle, comprising an elongated body havingside walls anda fiat floor, a packer cart with an upstanding vertical frameworkmounted upon wheels for movement longitudinally of said body over saidflat floor, a first expansible hydraulic motor pivotally mounted uponthe rear of said body, a second expansible hydraulic motor pivotallyjoined to said packer cart, an elongated lever means pivotally mountedupon the floor of said body and joined at opposite ends to said firstand second motors for movement of said packer cart, ahydraulicallyactuated bucket loader including arm means pivotally mounted upon thesides of said body for movement of thebucket between a load positionadjacent the rear of the body and a, discharge position, detachablemeans for interconnecting said bucket loader and tailgate selectively asthe bucket moves from the load toward the discharge position to lift thetailgate vertically clear of said lip and to pivot thetailgate to anopen position in sequence, said bucket being pivotally mounted upon saidarm means and carrying releasable'l-atch means for fixing the bucketagainst pivotal movement with respect to the arm means, and snubber linemeans of preselected length interconnecting said latch and body torelease the latch allowing the bucket to pivot packer is fully retractedthereby also defining an ,indicium of. theposition of the packer.

References Cited in the file of this patent UNITED STATES PATENTS1,922,851 Howard Aug. 15, 1933 2,056,495 Venema Oct. 6, 1936 2,260,947Leach et al. Oct. 28, 1941 2,271,444 Schutz eta1. Jan.'27, 19422,392,025 Craig Jan. 1, 1946 2,408,284 Anthony Sept. 24, 1946 2,494,013Tapp Ian. 10, 1950 2,511,556 Wood "June 13, 1950 2,753,057 Miller July3, 1956 FOREIGN PATENTS, 77,586 Norway Oct..16,l950

